<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HTML中From表单</title>
</head>
<body>
    <h3>表单就是用来用户输入信息的工具</h3>
    <h3>简单的表单的简介</h3>
    <h3>input 表单是单身狗</h3>
    <fieldset>
        <legend>1.文本域表单（Text Field）用来输入用户和密码</legend>
        <span>
            username: <input type="text" name="username">
        </span>
        <br>
        <span>
            password: <input type="password" name="password">
        </span>
    </fieldset>
    <br>
    <legend>2.</legend>
</body>
</html>